You're having a tough time and I feel for you.
Sometimes we get a little blind-sided by all the success stories and it's easy to feel left behind or a bit inadequate - I have in a way.
However, I suspect that many people are where they are today having been through some pretty grim times. Don't think others haven't been frightened too, because they have. You're not on your own.
What is good is that folk on here genuinely want to help. Many, many have benefited from both advice and pats on the back they've received.
You've laid yourself bare but, if you wish, tell us a bit more about yourself or what your diet's like, maybe it'll give us something to work with to try and help.
Bit of a ramble this, but it's well-meant.
Good luck and stick with it.